Hello,
I have a case with Chinese seller on eBay there was a problem with the item so he send me money to send him back, he says that he didn't receive the item, and the tracking number shows me that the item delivered to him, Ebay ask me for a proof that the item has been delivered to him :

eBay message :
"I've reviewed the tracking number (CP060116575SA) you provided and it doesn’t show that the item was delivered to the seller. In order for us to close this case in your favor, and issue a refund, we need to have proof that the item was successfully returned in the future. You'll receive an automated email with this same information, but I wanted to take a few moments and explain things in further detail.

I hope you understand that we can’t hold the seller accountable to issue a refund if we don't have proof that the seller received the item.

At this point, I recommend you contact the shipping carrier that was used for the shipment to see if they can provide you with a detailed information on where the package is.

You may keep track of the tracking and once it shows delivered, you contact your seller and ask for your money back."

I did go to Saudi post so I can get a proof that he received it I ask for it the said that the will contact China post, then a come back after Two weeks the said that China post didn't reply to us, even after months, still no reply from china post.

I hope that I can find a solution for this problem

tracking number :
CP060116575SA

track in official China post site :

Chinese

English (google translate)

Best Regards,
Malek.